import { ToStringVisitor } from './to-string-visitor.js';
import { ExprNode, AggregateNode, BetweenOpNode, NotBetweenOpNode, BinaryOpNode, CaseNode, WhenNode, CastNode, CollateNode, ColumnParamNode, ColumnRefNode, FragmentNode, FromClauseNode, FunctionNode, InOpNode, IntervalNode, JoinNode, ListNode, LiteralNode, LogicalOpNode, OrderByNode, ParamNode, DescribeQuery, SelectQuery, SetOperation, SampleClauseNode, SelectClauseNode, ScalarSubqueryNode, TableRefNode, UnaryOpNode, UnaryPostfixOpNode, UnnestNode, VerbatimNode, WindowNode, WindowClauseNode, WindowDefNode, WindowFunctionNode, WindowFrameNode, WindowFrameExprNode, WithClauseNode } from '../index.js';
/**
 * DuckDB SQL dialect visitor for converting AST nodes to DuckDB-compatible SQL.
 */
export declare class DuckDBVisitor extends ToStringVisitor {
    visitAggregate(node: AggregateNode): string;
    visitBetween(node: BetweenOpNode): string;
    visitBinary(node: BinaryOpNode): string;
    visitCase(node: CaseNode): string;
    visitCast(node: CastNode): string;
    visitCollate(node: CollateNode): string;
    visitColumnParam(node: ColumnParamNode): string;
    visitColumnRef(node: ColumnRefNode): string;
    visitDescribeQuery(node: DescribeQuery): string;
    visitExpression(node: ExprNode): string;
    visitFragment(node: FragmentNode): string;
    visitFromClause(node: FromClauseNode): string;
    visitFunction(node: FunctionNode): string;
    visitIn(node: InOpNode): string;
    visitInterval(node: IntervalNode): string;
    visitJoinClause(node: JoinNode): string;
    visitList(node: ListNode): string;
    visitLiteral(node: LiteralNode): string;
    visitLogicalOperator(node: LogicalOpNode<ExprNode>): string;
    visitNotBetween(node: NotBetweenOpNode): string;
    visitOrderBy(node: OrderByNode): string;
    visitParam(node: ParamNode): string;
    visitSampleClause(node: SampleClauseNode): string;
    visitScalarSubquery(node: ScalarSubqueryNode): string;
    visitSelectClause(node: SelectClauseNode): string;
    visitSelectQuery(node: SelectQuery): string;
    visitSetOperation(node: SetOperation): string;
    visitTableRef(node: TableRefNode): string;
    visitUnary(node: UnaryOpNode): string;
    visitUnaryPostfix(node: UnaryPostfixOpNode): string;
    visitUnnest(node: UnnestNode): string;
    visitVerbatim(node: VerbatimNode): string;
    visitWhen(node: WhenNode): string;
    visitWindow(node: WindowNode): string;
    visitWindowClause(node: WindowClauseNode): string;
    visitWindowDef(node: WindowDefNode): string;
    visitWindowExtentExpr(node: WindowFrameExprNode): string;
    visitWindowFrame(node: WindowFrameNode): string;
    private formatFrameValue;
    visitWindowFunction(node: WindowFunctionNode): string;
    visitWithClause(node: WithClauseNode): string;
}
export declare const duckdbVisitor: DuckDBVisitor;
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